Wheeled dirt-scraper.



S. F. MOUGIN.

WHEELED DIRT SCRAPER.

APPucAnoN min 1m29. 1916.

Patented Mar. 5, 1918.

S. F. IVIUUGIN.-

WHEELED DRT SCRAPER.

APPLICATION FILED 1m28. 1915.

1,258,238. Patented Mar. 5, 1918.

2 SHEETS-SHEET 2.

@0606er /J-/Vay/h ATTORNEY SPENCER F. MOUGIN, 0F SEATTLE, WASHINGTON.

Specication ofoLetters Ilatent.

WHEELED DIRT-seaman.

Parcheggi Mar. 5,1918.

vApplication med January 2.8, 1916. Serial No. 74,747.

To aZZ whom it may concern:

Be it known that I, SPENCER. F. MoUGIN, a citizen'of the United States, residing at Seattle, in the county ofKing and State of Washington, have invented certain new and useful Improvements in Wheeled Dirt- Scrapersfof which the following is a specification.

This invention relates to wheeled dirt Scrapers which are employed in excavating and grading earth, sand, gravelfetc., and then transporting. such material to a ll 0r dump. The object is to provide a conveniently operated scraper of this character having a large carrying capacity to enable the work to be rapidly and economically performed.

With these ends in view, the invention consists in the novel construction, adaptation and combination. of parts, as will be hereinafter described and claimed.

In the accompanying drawings, Figure l is a plan view of a wheeled scraper embodying my improvements. Fig. 2 is a longitudinal vertical section taken substantially through 2-2 of Fig. 1. Fig. 3 is a transverse vertical section through 3-3 of Fig. 1. Fig. 4 is a detail longitudinal sectional view of a scoop and the controlling mechanism' therefor when in the loading position. Fig.

5 is a similar view, showing by full lines a scoop in load-carrying position and by broken lines the position it will assume in dumping.

The reference numerals 10 and 102 designate front and rear wheels, and 11 are the axles therefor of a vehicle having a body including longitudinal side members 12. Secured to said frame members are the journal boxes 13 for transverse shafts 14 and/15 arranged one'in advance of the other.

Fixedl mounted on the opposite ends of said sha s are wheels or disks 141, 142, 151L and 152. The disks 141 and 151 are provided with peripheral" grooves to serve as sheaves for crossed belts or endless cables 143 and 152 which respectively extend about peripherally grooved sheaves 16 and -17 provided on transverse stub shafts 161 and 171journaled in bearing boxes 18 secured to the rear axle or the vehicle frame. vSaid cables are secured to the several sheaves by clamps, as indicated by 19, or other suitable means, so that when either of the sheaves associated with a cable is'rotated, .the other sheave will likewise berotated. To eifect such turning `of the sheaves for elevating a load, as will be presently explained, I provide upon said stub shafts arms 162 and 172 rectangular 'thereof to be successively engaged in a tubular handle 20` which is operable by an attendant standing on a platform 21 depending from the rear axle.

` 22 and 221 represent hooks engageanble over the shaft armsy162 and 172 to secure the Asamein their turned-down positions. IThe disks for the shafts 14. and 15 are provided with crank pins 23 whereto arev connected the upper ends of hanger-elements 24 and 241 `which are formed to substantially U- shapes (Fig. 3) and have their other ends connected by pivotal pins 25 to the side walls 26 of scraper pans A and B. Such connections with pans are made adjacent to the upper ends of the referred to walls and at or about their mid-lengths.

` Intermediate the lengths of the shafts 14 and 15 are crank-arms 27 arranged in angular relations with respect to radial lines projected through the axes of the `respective shafts and the crank pins 23. Each of said -crank-arms. is connected by links'28 and 29 with an'attachment 30 secured to the rear wall 261 ofthe respective pan.

More particularly, a -link 28 is pivotally "connected at its forwardend by pin 31 to its crank-arm and is coupled by a pin 32 with its complementary link 29. -The link 29 is desirably bifurcated to accommodate a part of the link 28 between its bifurcations. The pivotal connection 32 between a pair of links, as best shown in Figs. 4 and 5, is, moreover, disposed at distances `from the ends of the links to afford protruding por-l tions 281 and 291. The link portion 281 terminates in a beveled extremity 282 which is adapted, when encountering the beveled face 33 lat the upper end of a hook 331' which is swiveled by a pin 34 to link 29, to swerve said hook rearwardly and allow such link extremity to be lowered into position whereupon it is engaged by the hook when the latter is urged forwardly by a spring 35 connected to an extension 332 of said hook.

292 represents a stop on link 29 and engagea-ble against the link 28 to obviatea pair of links from folding downwardly. f

Pivotally connected to the vehicle frame in advance of the respective pans are drawbars 38 and 39 vhaving hook-shaped rear aon ends 381 and 391 adapted to engage lugs 4Q provided near the front ends of the pans when they are in their loading posltlons.

The draw-bars are automatically actuated to engage or disengage the same to and from the pans when lowered and raised by connecting the bars by rods 382 and 392. to

chains 42 with the crank-arms 27 of shafts 14 and 15, hence when a crank-arm is swung rearwardly during the lowering of a pan into dirt-scoopingl position (Fig. 4) the chain serves to raise the connected apronfrom in front of a pan, as shown, with respect to the forward pan A in Figs. 1 and 2.

In elevating a pan, as indicated in Fig. 5,

said crank-arm is swung forwardly, resultinginthe lowering of the apron with respect toitspan, as illustrated for the rearmost pan in Figs.` 1 and 2. Y

The aforesaid hook extensions 332 are` connected to branches 44 of a cable or rope 441 which is led to and about a winding drum 45 provided on a shaft 451 adjacent to the drivers seat 46. Said shaft is also provided with a ratchet wheel 452 whereby rotary motion may be imparted to said drum for winding the rope 441 thereabout through the medium of a pawl 47 carried by a lever 48 which is loosely ivoted on the shaft 451.

The invention isi ustrated as applied to a vehicle designed to`bedrawn by a team of horses, but it may, if desired, be propelled by an engine or by any other suitable means.

The operation of the invention is as follows:

The pans A and B are,l by the power of gravity, successively lowered into positions when the hooks 22 and 221 are disengaged from the arms 172 and 162 by an attendant who rides on the vehicle platform 21. 4

After the pans are loaded, they aresuccessively elevated by the attendant and thus maintained until the vehicle reaches the dumping place, when the driver frmhis seat 46 effects the simultaneous tilting of both ans to deposit their contents.

Re erring particularly to Figs. 4 and 5, a

^ pan, as B in the example, is lowered by its weight acting through hangers 241 and rotating of the disks to present the pan in the position in which represented in Fig. 4. As this occurs, the pair'of links 28 and 29 are distended and thus locked through the oiiice of the spring actuated hook 331. Also .as the pan descends, the rods 382 shown with respect to pan' A in Fig. 2, are affected by the rotation of disks[141 and 142 to cause the hooked ends 381 of draw-bars 38 to cngage lugs 40 of the pan to accordingly secure the pan against relative rearward movement 1n the progress of the vehicle.

After being loaded, a pan isV raised bythe attendant at the rear who imparts,V as explained, rotary motion to the disks 141 and 142 which act through the medium of the hangers to raise the pan. As this occurs, the pair of links 28 and 29 remain distended, and, subject to the changed position of crank 27, coperate with the hangers to raise the pan into the position shown in Fig. 5. y

Meanwhile the rods 39.2 are influenced by the rotation of the disks with which they are connectedfto disengage the draw-bars 39 from the pan. Furthermore, while a pan is being raisedthe crank-arm 27 to which chain 42 of the associated apron 41 is connected, is

4 tilted forwardly tothereby allow the apron to descend into operative position in front of the load in the pan to prevent the accidental spilling of the saine.

Such aposition of an apron is indicated in Fig. 2 with respect to the pan B. When both pans are thus elevated in loaded states, the vehicle is propelled to the dumping place, 'whereat the driver by winding the rope 441 about drum 45 through instrumentality of the lever 48, exercises a pull through rope branches 44 to first disengage the hooks 331 from the links 28 of both pans and by a continued pull the rear ends of both pans are tilted up into dumping posif tions such as indicated by broken lines B1 in Fig. I5. As this occurs, the links 28 and 29 assume the relative positions such as denoted by broken lines 28*1 and 29a in the view.

What I claim, is

1. In a wheeled dirt-scraper, a vehicle l frame, a transverse shaft rotatably mounted stantially horizontal positions'at its various elevations as effected through the instrumentality of said shaft and the crank elements` thereof, and means for actuating said device whereby the links are irst rendered inoperative to hold the pan in a substantially horizontal position and subsequently lserving to influence the links whereby the pan isV tiltedabout the axis of said pivots. Y 2. In a. wheeled scraper, a vehicle frame,

a transverse shaftthereon, two crank-disks secured on said shaft, a pan, hangers connected to said crank-disks and to the pan for tiltably supporting the same at various elevations, a second shaft, a wheel mounted on this shaft, operative connections between said wheel and one of said disks whereby a rotary movement of said second shaft will impart rotary movement to the rst-named shaft to raise or lower the pan through the medium of said hangers, means to rotate said second shaft, means to secure the shaft in adjusted rotated position, devices connected with said first-named shaft and the pan for releasably holding said pan against accidental tilting, and a looking means oooperating with said devices to render the same operative, and means whereby said locking means are rendered temporarily inoperative and the tilting of the pan is accomplished.

3. In a wheeled dirt-scraper, a transverse shaft, disks mounted thereon, crank pins provided on said disks, a pan, hangers conneoted to said pan and to said crank-pins,

draw-bars engageable with the forward end of said pan, operative connections between said draw-bars and the disks whereby the rotary movements of the latter in lowering and raising the pan will respectively engage and disengage thel draw-bar with respect to the pan, operative connections between said shaft and the rear end of the pan for holding the rear end of the latter in. its loading and carrying positions, and means operable from the front end of the scraper whereby said connections are rendered temporarily inoperative and thc dumping of the pan is eected.

Signed at Seattle, Washington, this 8th day of January, 1916.

SPENCER E. MoUGiN. Witnesses:

PIERRE BARNES, E. PETERSON. 

